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578                            RANGE OF CHIMPANZEES                          CRAK

seiitly. The pigmentation of the body is not always so pro-
nounced as in the G-orilla. The nasal bones are shorter. The
skull as a whole is more brachycephaiic, and the rnolar teeth are
smaller. The hands and feet are much longer, the animal being
more purely arboreal than the Gorilla. The female Chimpanzee is
slightly smaller than the male, but the great disparity observable
in the G-orilla does not characterise its ally. The animal, like
the G-orilla, has large air sacs.

Chimpanzees   are   entirely restricted   to Africa,  and   though

FIG. 276.—Skull of Chimpanzee.     A nthropopithecus troglodytes.     x £.
(After de Blainville.)
they appear  to   extend rather farther east  than the   Gorilla, the
forest-clad region of the equatorial belt Is their home.
It has been mentioned in treating of the Gorilla that the
main feature of this animal, which affords a constant difference
from the Chimpanzee, is its gloomy and ferocious manner. The
Chimpanzee, on the other hand, is lively and playful, though
often maliciously so, and quite tameable, as many Instances —
particularly the notorious " Sally" of the Zoological Gardens—
show. The earliest mention of animals that are probably Chim-
panzees is to be found, in a work upon the Kingdom of Congo,
published in 1598. In a cut illustrating that work, and of